CN211848965U - Cast-in-place box girder support - Google Patents
Cast-in-place box girder support Download PDFInfo
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- CN211848965U CN211848965U CN201922497572.6U CN201922497572U CN211848965U CN 211848965 U CN211848965 U CN 211848965U CN 201922497572 U CN201922497572 U CN 201922497572U CN 211848965 U CN211848965 U CN 211848965U
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Abstract
The utility model relates to a bridge engineering field provides a cast-in-place box girder support, and it includes: the pile comprises a plurality of rows of pipe pile units arranged at intervals, wherein each row of pipe pile units comprises a plurality of groups of pipe pile groups arranged at intervals, each group of pipe pile group comprises two PHC pipe piles arranged at intervals, and bearing platforms are arranged on the two PHC pipe piles; each first distribution beam is correspondingly arranged on a bearing platform of one row of the tubular pile units; a plurality of groups of Bailey beam bracket units which are vertically arranged on the first distribution beam at intervals; and the disc buckle bracket is arranged on the Bailey beam bracket unit. The utility model discloses can solve among the prior art steel tubular pile and arrange a large amount, and the festival is more when single is pulled out, and the waste time when leading to pulling out influences the construction progress.
Description
Technical Field
The utility model relates to a bridge engineering field, concretely relates to cast-in-place case roof beam support.
Background
The common cast-in-place box girder support adopts a full-scale support or a steel pipe pile, a distribution beam and a Bailey beam support, the full-scale support needs to treat a foundation to ensure that the bearing capacity of the foundation meets the requirement, measures such as drainage and the like are taken in the using process, and the foundation is prevented from being unevenly settled; after the construction of the steel pipe pile, the distribution beam and the Bailey beam support is completed, the Bailey beam and the distribution beam are gradually dismantled from top to bottom, and the pipe pile is pulled out.
However, in the areas where the filler required by soft soil foundation treatment is in short supply, the cast-in-place box girder construction adopts full framing construction, the foundation treatment cost is high, uneven settlement is easy to occur, the safety risk is high, the economical efficiency is poor, and the construction quality is not easy to guarantee; the construction of the cast-in-place box girder with lower clearance and larger curvature adopts the construction of a steel pipe pile support, the arrangement quantity of the steel pipe piles is more, and the single cast-in-place box girder is more divided during the removal, so that the time waste during the removal is caused, and the construction progress is influenced.
SUMMERY OF THE UTILITY MODEL
To the defect that exists among the prior art, the utility model aims to provide a cast-in-place box girder iron can solve among the prior art steel tubular pile and arrange a large amount, and the festival is more when single pulling out, and the waste time when leading to pulling out influences the construction progress.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
the utility model provides a cast-in-place box girder iron, it includes:
the pile comprises a plurality of rows of pipe pile units arranged at intervals, wherein each row of pipe pile units comprises a plurality of groups of pipe pile groups arranged at intervals, each group of pipe pile group comprises two PHC pipe piles arranged at intervals, and bearing platforms are arranged on the two PHC pipe piles;
each first distribution beam is correspondingly arranged on a bearing platform of one row of the tubular pile units;
a plurality of groups of Bailey beam bracket units which are vertically arranged on the first distribution beam at intervals;
and the disc buckle bracket is arranged on the Bailey beam bracket unit.
On the basis of the technical scheme, the distribution device further comprises a plurality of second distribution beams which are vertically arranged on the Bailey beam bracket unit at intervals, and the disc buckle brackets are arranged on the second distribution beams.
On the basis of the technical scheme, the dish is detained the support and is included a plurality of bracket unit that splice in proper order, every bracket unit includes that four are parallel to each other and are the adjustable branch that the rectangle set up, every adjustable branch's lower extreme is fixed in on the second distribution roof beam, be located the root on one side of the rectangle adjustable branch is connected through first horizontal pole and down tube, and every two bracket unit's correspondence adjustable branch passes through the second horizontal pole and connects.
On the basis of the above technical scheme, the adjustable supporting rod comprises:
a base fixedly connected to the second distribution beam;
the first screw rod is vertically connected with the base;
a first screw member screwed on the first screw rod;
the connecting pipe fitting is sleeved on the first screw rod, one end of the connecting pipe fitting is abutted against the first spiral piece, and a gap is reserved between the first screw rod and the connecting pipe fitting;
and one end of the branch pipe is arranged in the gap.
On the basis of the technical scheme, the branch pipe comprises a plurality of pipe rods which are connected in sequence, and every two pipe rods are connected with each other through a connecting rod.
On the basis of the technical scheme, the connecting part of the two pipe rods is provided with a pin hole, the connecting rod is correspondingly provided with a pin hole, and the pipe rods and the connecting rod are fixed through pins.
On the basis of the technical scheme, the middle part of the connecting pipe fitting is provided with a first connecting disc, and the first cross rod is connected with the lower ends of the two adjustable supporting rods through the first connecting disc.
On the basis of the technical scheme, the middle parts of the branch pipes are provided with second connecting discs, and the first cross rod is connected with the middle parts of the two branch pipes through the second connecting discs.
On the basis of the technical scheme, the upper end of the branch pipe is provided with an adjustable jacking.
On the basis of the technical scheme, the adjustable jacking device comprises:
a second screw, one end of which is arranged in the branch pipe;
a tray vertically fixed to the other end of the second screw;
and the second screw is arranged on the second screw in a rotating manner and is abutted against the upper end of the branch pipe.
Compared with the prior art, the utility model has the advantages of: when the cast-in-place box girder support is used, firstly, PHC tubular piles are inserted and punched at set positions, bearing platforms are arranged on the tubular pile groups of the same group, a first distribution beam is arranged on the bearing platform of each row of tubular pile units, a plurality of groups of Bailey beam support units are vertically arranged on the first distribution beam at intervals, and the disc buckle supports are arranged on the Bailey beam support units. The design can be applied to construction with a soft soil foundation and limited upper clearance, the influence of foundation settlement on the support is avoided, the PHC tubular pile can not be pulled out after being used, the PHC tubular pile is convenient to detach and transport, the construction time is saved, and the construction efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of a cast-in-place box girder support in the transverse direction of a bridge in an embodiment of the present invention;
fig. 2 is a schematic structural view of a longitudinal bridge direction of a cast-in-place box girder support in the embodiment of the present invention;
fig. 3 is a schematic structural view of an adjustable supporting rod in an embodiment of the present invention;
fig. 4 is an enlarged schematic structural view of the bottom end of the adjustable supporting rod in the embodiment of the present invention;
fig. 5 is a schematic front view of the bracket unit according to the embodiment of the present invention.
In the figure: 1. PHC tubular pile; 11. a bearing platform; 2. a first distribution beam; 3. a Bailey beam support unit; 4. a second distribution beam; 5. a plate buckle bracket; 51. an adjustable strut; 511. a base; 512. a first screw; 513. a first helical component; 514. connecting pipe fittings; 515. a branch pipe; 516. a connecting rod; 517. a pin; 518. the adjustable jacking is carried out; 5181. a second screw; 5182. a tray; 5183. a second helix; 52. a first cross bar; 53. a diagonal bar; 54. a second cross bar.
Detailed Description
The following describes an embodiment of a cast-in-place box girder support according to the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a cast-in-place box girder support in the transverse direction of a bridge in an embodiment of the present invention; fig. 2 is a schematic structural view of a longitudinal bridge direction of a cast-in-place box girder support in the embodiment of the present invention; as shown in fig. 1 and 2:
the utility model provides a cast-in-place box girder iron, it includes: the pipe pile structure comprises a plurality of rows of pipe pile units arranged at intervals, wherein each row of pipe pile unit comprises a plurality of groups of pipe pile groups arranged at intervals, each group of pipe pile group comprises two PHC (pre-stressed high-strength concrete) pipe piles 1 arranged at intervals, and bearing platforms 11 are arranged on the two PHC pipe piles 1; the first distribution beams 2 are correspondingly arranged on the bearing platforms 11 of the row of tubular pile units; a plurality of groups of Bailey beam bracket units 3 which are vertically arranged on the first distribution beam 2 at intervals; and a disc buckle bracket 5 provided on the bailey beam bracket unit 3.
When the cast-in-place box girder support is used, a pile driver runs to a preset pile position to insert and pile the PHC tubular pile 1, the double control principle of designed pile length and penetration is used as a hammer stopping standard, a bearing platform 11 is arranged on the same group of tubular pile groups, a first distribution girder 2 is arranged on the bearing platform 11 of each row of tubular pile units, a plurality of groups of Bailey girder support units 3 are vertically arranged on the first distribution girder 2 at intervals, and the disc buckling supports 5 are arranged on the Bailey girder support units 3. Such design can be applied to soft soil foundation and the limited construction of upper portion headroom, has avoided the influence of ground settlement to the support to use PHC tubular pile 1 can not pull out after using, and conveniently demolish the transportation of falling, save engineering time, improve the efficiency of construction.
In the embodiment, lofting is carried out on the pile position of the third PHC tubular pile on the left side of the main line bridge according to a design drawing, a DF50 diesel pile driver runs to the pile position to insert and pile the PHC tubular pile, and the double control principle of the designed pile length and the penetration is used as the standard for stopping the hammer; before the concrete platform is constructed, core filling construction is carried out on the PHC tubular pile. The core filling depth is 1.5m, the steel reinforcement cage extends into the core filling concrete by 1.0m, and the length of the steel reinforcement cage extending into the concrete pedestal is not less than 35 times of the diameter of the main reinforcement; the PHC tubular piles are connected with two tubular piles in the same row by adopting the concrete pedestals to serve as main bearing and force transmission structures, and meanwhile, the concrete pedestals are adopted to ensure the level of the upper structure, so that the influence of deviation on the overall structure caused by the inserting and hitting of the top standard of the PHC tubular piles is reduced; the concrete pedestal is provided with a first distribution beam with the full length of 2HW588 multiplied by 300mm, and the length is determined according to the width of the box beam. The Bailey beams are hoisted in groups by manually matching with a crane, the Bailey beams are arranged to correspond to the center line of the web plate, and the support frames among the groups are timely installed after hoisting in place.
Preferably, a plurality of second distribution beams 4 are further included, which are vertically spaced apart on the beret beam holder unit 3, and the disc buckle holders 5 are provided on the second distribution beams 4.
In this embodiment, when the distance between the multiple groups of beret beam support units 3 exceeds the setting requirement of the disc buckle support 5, the longitudinal second distribution beams 4 are set on the multiple groups of beret beam support units 3, and the second distribution beams 4 are set on the multiple groups of beret beam support units 3, so that the setting of the second distribution beams 4 can be facilitated.
Fig. 3 is a schematic structural view of an adjustable supporting rod in an embodiment of the present invention; fig. 4 is an enlarged schematic structural view of the bottom end of the adjustable supporting rod in the embodiment of the present invention; fig. 5 is a schematic front view structure diagram of the bracket unit in the embodiment of the present invention, as shown in fig. 3 to 5:
preferably, the coiling and buckling support 5 comprises a plurality of sequentially spliced support units, each support unit comprises four adjustable support rods 51 which are parallel to each other and arranged in a rectangular shape, the lower end of each adjustable support rod 51 is fixedly connected with the second distribution beam 4, the adjustable support rods 51 positioned on one side of the rectangular shape are connected through a first cross rod 52 and an inclined rod 53, and the corresponding adjustable support rods 51 of every two support units are connected through a second cross rod 54.
In this embodiment, the coiling buckle support 5 comprises four adjustable supporting rods 51 which are parallel to each other and arranged in a rectangular shape, so that the height of the coiling buckle support 5 is adjustable, and the design can facilitate the adjustment of the height of the coiling buckle support 5 within a certain range to meet the requirements of different heights.
Preferably, the adjustable strut 51 comprises: a foundation 511 fixedly connected to the second distributor beam 4; a first screw 512 vertically connected to the susceptor 511; a first screw 513 screwed on the first screw 512; a connecting pipe 514, which is sleeved on the first screw 512, and one end of which is supported against the first screw 513, and a gap is left between the first screw 512 and the connecting pipe 514; a branch pipe 515, one end of which is placed in the gap.
In this embodiment, the branch pipe 515 is disposed in a gap between the first screw 512 and the connecting pipe 514, the branch pipe 515 abuts against the first screw 513, and the height of the branch pipe 515 can be adjusted by rotating the first screw 513, so that the height of the buckle holder 5 can be adjusted within a certain range to meet the requirements of different heights.
Preferably, the branch pipe 515 includes a plurality of pipe rods connected in sequence, and each two pipe rods are connected to each other by a connection rod 516.
In this embodiment, the branch pipe 515 is formed by combining a plurality of pipes connected in sequence, which facilitates the transportation and installation of the branch pipe 515.
Preferably, a pin hole is formed at the joint of the two tubes, a pin hole is correspondingly formed in the connecting rod 516, and the tubes and the connecting rod 516 are fixed through pins 517.
In this embodiment, the tube rod and the connecting rod 516 are fixed by a pin 517, which facilitates the detachment of the branch tube 515.
Preferably, the connecting tube 514 has a first connecting plate at the middle, and the first cross bar 52 is connected to the lower ends of the two adjustable struts 51 through the first connecting plate.
In this embodiment, the first cross bar 52 is connected to the lower ends of the two adjustable struts 51 through the first connecting plate, so as to facilitate the detachment of the first cross bar 52.
Preferably, the middle of the branch pipe 515 is provided with a second connecting plate, and the first cross bar 52 connects the middle of the two branch pipes 515 through the second connecting plate.
In this embodiment, the first cross bar 52 connects the middle portions of the two branch pipes 515 via the second connecting plate, so that the first cross bar 52 can be conveniently detached.
Preferably, the upper end of the branch pipe 515 is provided with an adjustable jacking 518.
In this embodiment, the upper end of the branch pipe 515 is provided with an adjustable jacking 518, which can adjust the height of the branch pipe 515 within a certain range.
Preferably, the adjustable jacking 518 comprises: a second screw 5181 having one end disposed in the branch pipe 515; a tray 5182 vertically fixed to the other end of the second screw 5181; and a second screw 5183 screwed on the second screw 5181 and supported against the upper end of the branch pipe 515.
In this embodiment, the tray 5182 is vertically fixed to the second screw 5181, the second screw 5181 is disposed in the branch pipe 515, the second screw 5183 is rotatably disposed on the second screw 5181 and abuts against the upper end of the branch pipe 515, and the length of the second screw 5181 extending out of the branch pipe 515 can be adjusted by rotating the second screw 5183, so as to adjust the height of the tray 5182. The tray 5182 is used for jacking a mould of the cast-in-situ box girder.
To sum up, the design of this cast-in-place box girder support can be applied to soft soil foundation and the limited construction of upper portion headroom, has avoided the influence of ground settlement to the support to use PHC tubular pile 1 can not pull out after using, and conveniently demolish the transportation of falling, save the engineering time, improve the efficiency of construction. And the height of the disc buckle bracket 5 can be finely adjusted through the adjustable supporting rod 51 and the adjustable jacking 518, so that the construction is convenient, and the construction efficiency is improved.
The present invention is not limited to the above preferred embodiments, and any person can obtain other products in various forms without departing from the scope of the present invention, but any change in shape or structure is within the scope of protection.
Claims (10)
1. The utility model provides a cast-in-place box girder support which characterized in that, it includes:
the pile comprises a plurality of rows of pipe pile units arranged at intervals, wherein each row of pipe pile units comprises a plurality of groups of pipe pile groups arranged at intervals, each group of pipe pile group comprises two prestressed high-strength concrete PHC pipe piles (1) arranged at intervals, and bearing platforms (11) are arranged on the two PHC pipe piles (1);
the first distribution beams (2) are correspondingly arranged on the bearing platforms (11) of the tubular pile units in a row;
a plurality of groups of Bailey beam bracket units (3) which are vertically arranged on the first distribution beam (2) at intervals;
and the coiling buckle bracket (5) is arranged on the Bailey beam bracket unit (3).
2. A cast-in-place box beam support according to claim 1, characterized in that it further comprises a plurality of second distribution beams (4) vertically spaced and arranged on the beret beam support unit (3) by U-shaped clips, said disc holder (5) being arranged on said second distribution beams (4).
3. A cast-in-place box beam support according to claim 2, characterized in that the coil buckle support (5) comprises a plurality of sequentially spliced support units, each support unit comprises four adjustable support rods (51) which are arranged in a rectangular shape in parallel with each other, the lower end of each adjustable support rod (51) is fixedly connected with the second distribution beam (4), the adjustable support rods (51) on one side of the rectangular shape are connected with an inclined rod (53) through a first cross rod (52), and two adjacent support units are connected with each other through a second cross rod (54).
4. A cast in situ box beam support according to claim 3, characterised in that the adjustable strut (51) comprises:
-a foundation (511) fixed to said second distribution beam (4);
a first screw (512) vertically connected to the base (511);
a first screw (513) screwed on the first screw (512);
the connecting pipe fitting (514) is sleeved on the first screw rod (512), one end of the connecting pipe fitting abuts against the first screw part (513), and a gap is reserved between the first screw rod (512) and the connecting pipe fitting (514);
a branch pipe (515) having one end disposed in the gap.
5. A cast-in-place box beam support according to claim 4, characterized in that the branch pipe (515) comprises a plurality of pipe rods connected in sequence, and each two pipe rods are connected with each other through a connecting rod (516).
6. A cast-in-place box girder support according to claim 5, characterized in that a pin hole is formed at the joint of the two pipe rods, a pin hole is correspondingly formed in the connecting rod (516), and the pipe rods and the connecting rod (516) are fixed by a pin (517).
7. A cast-in-place box beam support according to claim 4, characterized in that a first connecting disc is arranged in the middle of the connecting pipe fitting (514), and the first cross bar (52) is connected with the lower ends of the two adjustable supporting rods (51) through the first connecting disc.
8. A cast-in-place box girder support according to claim 4, characterized in that the middle of the branch pipes (515) is provided with a second connecting plate, and the first cross bar (52) connects the middle of the two branch pipes (515) through the second connecting plate.
9. A cast-in-place box beam support according to claim 4, characterized in that the upper ends of the branch pipes (515) are provided with adjustable jacking brackets (518).
10. A cast in situ box beam support as claimed in claim 9, wherein the adjustable jacking (518) comprises:
a second screw (5181) having one end placed in the branch pipe (515);
a tray (5182) vertically fixed to the other end of the second screw (5181);
and the second screw (5183) is screwed on the second screw (5181) and abuts against the upper end of the branch pipe (515).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922497572.6U CN211848965U (en) | 2019-12-31 | 2019-12-31 | Cast-in-place box girder support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922497572.6U CN211848965U (en) | 2019-12-31 | 2019-12-31 | Cast-in-place box girder support |
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| CN211848965U true CN211848965U (en) | 2020-11-03 |
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| CN201922497572.6U Active CN211848965U (en) | 2019-12-31 | 2019-12-31 | Cast-in-place box girder support |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113235427A (en) * | 2021-05-28 | 2021-08-10 | 中铁二十局集团第三工程有限公司 | Support structure and construction method thereof |
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2019
- 2019-12-31 CN CN201922497572.6U patent/CN211848965U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113235427A (en) * | 2021-05-28 | 2021-08-10 | 中铁二十局集团第三工程有限公司 | Support structure and construction method thereof |
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